Open .IMA file Extension

The error "There is no application set to open the document." is a common problem faced by millions of Mac users daily. This happens either because the required app to open that file does not exist or there might be some malicious apps tempering your Mac

.IM

What is .IMA file?

HTML-compatible email message saved by ACT!, a contact management application; may contain plain text email message or HTML email message, and may also include one or more attachments.
The IMA format was introduced with ACT! 6.0.3 to replace the previous .DET email format. Unlike DET files, IMA files may include multiple attachments within a single file. Additionally, IMA files contain standard HTML code that may be viewed in a web browser.